Anti-F4/80 antibody [CI:A3-1] - Macrophage Marker (ab6640)

ab6640 staining F4/80 in mouse spleen tissue sections by Immunohistochemistry (PFA perfusion fixed frozen sections). Tissue samples were fixed by perfusion with paraformaldehyde and blocked with 5% serum for 45 minutes at 21°C. The sample was incubated with primary antibody (1/100 in PBS + 5% FBS) at 4°C for 16 hours. An Alexa Fluor^® 488-conjugated goat anti-rat IgG (H+L) polyclonal (1/200) was used as the secondary antibody.

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ab6640 stained Raw 264.7 cells. The cells were 100% methanol fixed for 5 minutes at room temperatureand then incubated in 1%BSA / 10% normal Goat serum / 0.3M glycine in 0.1% PBS-Tween for 1hour at room temperature to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab6640 at 5µg/ml) overnight at +4°C. The secondary antibody (pseudo-colored green) was ab150165 Goat Anti-Rat IgG H&L (Alexa Fluor® 488) preadsorbed used at a 1/1000 dilution for 1 hour at room temperature. Alexa Fluor® 594 WGA was used to label plasma membranes (pseudo-colored red) at a 1/200 dilution for 1hour at room temperature. DAPI was used to stain the cell nuclei (pseudo-colored blue) at a concentration of 1.43µM for 1hour at room temperature.

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Flow cytometry analysis of J774 cells labelling F4/80 (red) with ab6640 at a dilution of 1/10 followed by streptavidin FITC secondary at 1/100 dilution. The blue line shows J774 cells stained with Rat anti mouse isotype control. 

ab6640 staining F4/80 (red) in Mouse intestine tissue sections by Immunohistochemistry (IHC-Fr - frozen sections). Tissue was fixed with acetone and blocked with 10% serum for 1 hour at 21°C. Samples were incubated with primary antibody (1/10µg/ml in PBS + 10% serum) for 16 hours at 4°C. An Alexa Fluor® 555-conjugated Donkey anti-rat IgG polyclonal (1/1000) was used as the secondary antibody. Blue - nuclei.

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Flow cytometry analysis of peritoneal macrophages labelling F4/80 (red) with ab6640 at a dilution of 1/10. The blue line shows J774 cells stained with Rat anti mouse isotype control. 

Flow cytometry analysis of J774 cells labelling F4/80 (red) with ab6640 at a dilution of 1/50 followed by goat anti rat IgG FITC secondary antibody at 1/100 dilution. The blue line shows J774 cells stained with Rat anti mouse isotype control.